Carbureter.



No. 659,476. Patented Oct. 9, I900.

A. E. HODDER.

GARBURETEB. (Application med Aug. 19, 1899.)

(N0 M m 2 sheets-Sheet l.

No.'659,476. Patented on. 9,1960. \A. E. HODDER. CABBUBETER.

(Apylicntion mad Aug. 19, 1599.) ([40 Model.) 2 Sheets-Sheet 2.

wgm

EYE TATES PATENT QEFICE.

ALBERT EDWARD HODDER, OF LONDON, ENGLAND, AssIeNoE'OE ONE- HALF TO JOHNBINGLEY GARLAND LESTER, or SAME PLACE.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 659,476, dated October9, 1900.

Application filed August 19; 1899. fiell'al 7 :3 6- (N0 mOdBL) To (LUwhom it may concern:

Be it known that I, ALBERT EDWARD HOD- DER, a subject of the Queen ofEngland, residing at Lon don, England, have invented certain new anduseful Improvements in Carbureters, (for which I have made applicationfor Letters Patent in Great Britain under No. 10,439, dated May 17,1899,) of which the following is a specification.

This invention relates to the manufacture and distribution of gas forlighting and heatin g and comprises a power-station,from which air isforced along mains through the district to be illuminated. From thesemains branch pipes are led to the various installations in the system. Agenerator is provided at each installation and comprises two or moreconcentric annular oarbureting-chambers, each connected to theair-supply main by means of a conduit provided with a cock in order toindependently regulate the amount of air passing to each chamber.Hydrocarbons of different specific gravities are employed separate fromeach other, each hydrocarbon being allotted its own chamber. By theseparation of the hydrocarbons and by the arrangement of an independentair-supply to each the proportion of carbureted air obtainable from eachchamber can be adjusted so that the gas resulting from the mixture ofthese carbureted streams may have the quality or richness desired. Anair-relief valve is provided upon the air-main adjacent to eachgenerator in order that the pressure therein may not exceed a givenmaximum value.

In the accompanying drawings, Figure 1 isa vertical section of agas-generator constructed according to this invention, showing thevarious pipe connections hereinafter referred to. Fig. 2 is a plan ofthe gas-generator, partly in section, on the line 2 2 of Fig. 1.

Like letters indicate like parts throughout the drawings.

The generator comprises a cylindrical vessel A, which is divided bymeans of two concentric cylindrical partitions B and G into two outerannular chambers A B and an inner cylindrical one C. This latter chamber0 is provided with a perforated false bottom 0 situated a short distanceabove the com-' mon bottom A of the three chambers, while the two outerchambers A B are each fitted with spiral blades or vanes A B so arrangedthat air delivered into the bottom of either chamber will be forced totravel several times around it in a helical path through the liquidcontained therein as it rises toward the upper end. The chamber 0 isfilled with naphthalene, preferably purified naphthalene, resting on theperforated false bottom 0 The two outer annular chambers A B contain,respectively, a heavy hydrocarbon (such as petroleum having aflash-point at or about 120 Fahrenheit) and a light petroleum ether orbenzin. The various chambers are filled through orifices provided attheir upper ends and capable of being hermetically sealed by means ofplugs A B 0 Compressed air is supplied from a central pumping-stationthrough them-ain D and led through the branch pipes D D to the bottom ofthe chambers A B, respectively.

The pipes D D are continued up through the bottom A of the generator, asshown at D and D Their ends D and D are received in inverted stoppedtubes E, which are perforated at their lower ends, as shown at E, theliquid in the space between these concentric tubes forming a liquidseal. Any other form of liquid seal may be used, however, or an ordinarynon-return valve may be provided in the pipes D D The tops of thechambers A B are connected to the top of the chamber 0' by means of thepipes A B, and from the bottom of the latter chamber, a pipe leads tothe burners. One or both of the pipes A 13 may be provided with a cock.

A loaded relief-valve F of any convenient construction is provided onthe air-main D adjacent to each generator. The maximum pressure of airin the generator and of gas in the system may be regulated by varyingthe pressure on the valve F.

Hand-controlled valves G H are provided in the pipes D D and by means ofthese cooks the amount of air passing through the carbureting-chambers AB may be inde pendently controlled so as to regulate the richness of theresulting gas, as previously described.

In an apparatus such as described there will be two independent streamsof air, one passingthrongh the chamberA and the other through thechamber 13. Thence being saturated with the vapor of the liquidscontained in the two chambers A B the two streams unite in the centralchamber 0 and become further enriched in passing through the purifiednapthalene contained therein. From the chamber 0 the gas isleddi'rect tothe burners (which are fitted with incandescing mantles if the gas is tobe employed for the production of light) by means of the pipe 0 Havingnow particularly described and ascertained the nature of my saidinvention and in What manner the same is to be performed, I declare thatwhat I claim is 1. In an apparatus of thecharacter described, thecombination with a series of carbnreting-chambers arranged one Withinthe other, of a series of spirallyarranged vanes within each of saidchambers, an air-inlet pipe leading into each chamber below the vanestherein, and a carbureted-air-outlet pipe leading from each chamberabove the vanes, as and for the purpose set forth.

2. In an apparatus of the character described, the combination with acarburetingchamber, of a series of spirally-arranged vanes therein, anair-inlet pipe leading into said chamber below the vanes, acarburetedair-outlet pipe leading from said chamber above the vanes, anda chamber adapted to contain an enriching agent into which the saidoutlet-pipe leads.

3. In an apparatus of the character described, the combination with aseries of carbureting-chambers arranged one within the other, of aseries of spirally-arranged vanes within each of said chambers, anair-inlet pipe leading into each chamber below the vanes therein, acarbureted-air-outlet pipe leading from each chamber above the vanes,and a chamber adapted to contain an enriching agent arranged within theinnermost carbureting-chamber and into which the said outlet-pipes lead.

4:. In an apparatus of the character described, the combination with aseries of annular carbureting-chambers arranged one within the other andspirally-arranged vanes in each chamber, of a central chamber, aperforated bottom therefor, an air inletpi pe leading into eachcarbnreting-chamber below the vanes therein, a carbnreted-air-ontletpipe leading from each carbnreting-chamber above the vanes and into thecentral chamber, and an outlet-pipe leading from the central chamberbelow the perforated bottom thereof.

In testimony whereof I have hereto set my hand in the presence of thetwo subscribing witnesses.

ALBERT EDWARD I-IODDER. Witnesses:

GEo. M. BRUSHLIN, T. J. OSMAN.

